the power from that exhaust won't be enough to make serious adjustments on the truck.

Depending on how tight your diffs are you might get the front wheels to spin by spinning one back wheel. If your diffs are loose then the oppsoite rear tire will just spin the opposite way.

If you put the truck down on the ground and hold the spur gear and push the truck does the truck roll easiily or does the spur gear try to turn with the truck?

I'll keep you updated on the body. Hopefully it'll start looking better tomorrow or friday. I'm hoping at the end of day friday it will be finished.

I'm mounting up the tires tonight. I'm hoping to try out that tape trick to keep them from ballooning. Hopefully it works!